这个标识是什么意思?What does this sign mean?

这个标识是什么意思?What does this sign mean?
摩托车可以在标识左侧停车,私家车也可以Motorcycles are allowed to park to the left of this sign, along with any other private vehicles
只有摩托车可以在标识左侧停车Only motorcycles are allowed to park to the left of this sign
标识左侧不许停放摩托车,但是右侧可以Motorcycles aren't allowed to park to the left of this sign, but are to the right

不需要解释,图片和答案已经说明了一切。